522: Namespace changes mean 4.3 is not backwards compatible with 4.2
FpML 4.3 states it is backwards compatible with 4.2 (http://www.fpml.org/spec/2007/lcwd-fpml-4-3-2007-10-30/html/index.html with one proviso 1.6.2.1) If this is true, one should be able to validate a 4.2 message using the 4.3 schema in any tool that supports validation against schema. However, this is not possible due to the namespace naming policy. http://www.fpml.org/spec/2007/tr-fpml-arch-2-1-2007-09-17/ – 4.4.1 That calls … Continued